﻿ Maths Exam

### Maths Exam

1. Simplify 1

 Simplify the following expression: $$\left(-3 - 4 + 2\times5\right)2(-2)5$$ Correct Answer $$-60$$ or -60.0000

2. Simplify 2

 Simplify the following expression: $$\left(-5\times2 + \frac{5}{2}\right)2(-(-1))$$ Correct Answer $$-15$$ or -15.0000

3. Fractions 1

 Simplify the following expression: $$\frac{3}{2} + \frac{3}{4}$$ Correct Answer $$\frac{9}{4}$$ or 2.25

4. Fractions 2

 Simplify the following expression: $$\frac{-1}{5}\frac{1}{2}$$ Correct Answer $$\frac{-1}{10}$$ or -0.1

5. Significant figures

 1 Write the following to 3 significant figures: 12080.319Correct Answer 12100 or $$1.21\times10^{4}$$ 2 Write the following to 3 significant figures: 500.62674Correct Answer 501 or $$5.01\times10^{2}$$

6. Standard Form

 1 Write the following in standard form to 5 significant digits: 0.0000932869Correct Answer $$9.3287\times10^{-5}$$ 2 Write the following in standard form to 5 significant digits: 0.0000000769144Correct Answer $$7.6914\times10^{-8}$$

7. Significant figures

 1 Write the following in preferred standard form to 3 significant digits: 1.380Correct Answer $$1.38\times10^{0}$$ 2 Write the following in preferred standard form to 2 significant digits: 46820Correct Answer $$47\times10^{3}$$

8. Simplify 2

 Simplify the following expression: $$\frac{2(-2)(-1)}{\frac{5}{2} - 2\times3}$$ Correct Answer $$\frac{-8}{7}$$ or -1.14286

9. Simplify 1

 Simplify the following expression: $$2\times3\times3 - \left(-1 + 4 + 6 - 3\right)$$ Correct Answer $$12$$ or 12.0000

10. Simplify 2

 Simplify the following expression: $$2\left(2 - 1\right) - \left(4 + 5\right)\left(6 + 4\right)$$ Correct Answer $$-88$$ or -88.0000

## Other Articles: ## Atomistic Simulation of Metals

This presents an interactive simulation of atoms making up a nanoscopic particle of metal.

## Maths Exam Generator

Auto-generated maths exams, with and without answers. Set at A-level / end of high school / beginning of university. ## Mars Lander

An interactive simulation of a Mars Lander trying to land on Mars. The term "interactive" here means that you have to write the software, in Javascript, that will land the probe.